Margaretha Olowina van der Mersch1 
Child of Margaretha Olowina van der Mersch and Dr. Adam Crommelin
- Anna Maria Wilhelmina Jacoba Crommelin1 b. 20 Nov 1911, d. 13 Jan 2006
Frederik Wilhelm Fabius1 
Pierre César Guillaume Labouchere1 
Child of Pierre César Guillaume Labouchere and Charlotte Henriette Leopold
- Martine Louise Amélie Labouchere1 b. 17 Sep 1936
Children of Pierre César Guillaume Labouchere and Helena Johanna Lagerweij
- Alfred Joan Anton Labouchere2 b. 30 Dec 1951
- Samuel Pierre Labouchere2 b. 17 Oct 1956, d. 2 Mar 1998
- [S3268] Hans Harmsen, “re: Chester Family,” e-mail message to BENR, 21 August 2008. Hereinafter cited as “re: Chester Family.”
- [S7234] Joan Labouchere, “re: Labouchere Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 24 August 2014. Hereinafter cited as “re: Labouchere Family.”
Charlotte Henriette Leopold1 
Child of Charlotte Henriette Leopold and Pierre César Guillaume Labouchere
- Martine Louise Amélie Labouchere1 b. 17 Sep 1936
- [S3268] Hans Harmsen, “re: Chester Family,” e-mail message to BENR, 21 August 2008. Hereinafter cited as “re: Chester Family.”
- [S7234] Joan Labouchere, “re: Labouchere Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 24 August 2014. Hereinafter cited as “re: Labouchere Family.”
Martine Louise Amélie Labouchere1
She was Grand Mistress of the Robes of Queen Beatrix and King Willem-Alexander of the Netherlands between 1984 and 1 September 2014.2
- [S3268] Hans Harmsen, “re: Chester Family,” e-mail message to BENR, 21 August 2008. Hereinafter cited as “re: Chester Family.”
- [S7234] Joan Labouchere, “re: Labouchere Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 24 August 2014. Hereinafter cited as “re: Labouchere Family.”
Daniël Appolonius Delprat1 
Jonkheer Dr. Maurits Nanning van Loon1 
Albertine Marie van Hangest Barones d’Yvoy1 
Child of Albertine Marie van Hangest Barones d’Yvoy and Jonkheer Philip Ernest Vegelin van Claerbergen
- Adrienne Vegelin van Claerbergen+1 b. 12 Apr 1891, d. 9 Oct 1982
Agnes Henriétte Labouchere1 
Jonkheer Leendert Marinus Schuurbeque Boeye1 